Middleby Marshall Kit 39733 - Manual
Middleby Marshall Kit 39733 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 5 – D. TESTING THE INSTALLATION; to the high limit controls terminals.
- Page 6 – KEY
- Page 8 – A MIDDLEBY COMPANY
Qty.
P/N
Description
1
39732
Instructions
1
34982
Watlow high limit control module
1
30693
Reset switch w/ lighted pushbutton
1
35634
Mounting bracket, reset switch
1
35691
Wire set, reset switch
(includes 4
wires and 3 1/4/25mm connectors)
1
33812-1
Thermocouple, type J, 6/152.4mm
1
39690
Mounting sleeve, thermocouple
Instructions for Service Kit 39733
High Limit Conversion Kit for PS300, 310, 350, & 360 Ovens
Middleby Cooking Systems Group 1400 Toastmaster Drive Elgin, IL 60120 USA (847) 741-3300 FAX (847) 741-4406
TOOLS REQUIRED
Drill with 3/16 drill bit
Middleby Marshall Thermocouple Signal Source
Generator (P/N 27170-0192)
Wire cutters/strippers
Qty.
P/N
Description
2 ft./610mm 27152-0050 Wire, #18 AWG, brown
2 ft./610mm 27152-0053 Wire, #18 AWG, white
2 ft./610mm 27152-0054 Wire, #18 AWG, purple
8
1455A8750
Wire connector, 1/4/6.4mm
1
3002693
Wire tie, nylon
2
2000076
Screw, 6-32 X 1-5/8
2
1421B8803 Screw, 6-32 X 1/4
4
2001327
Nut, 6-32
KIT COMPONENTS -
Check that the kit includes ALL of these parts BEFORE you begin!
A. OVERVIEW
This Service Kit is used to replace two different types of
United Electric high limit/cooldown controllers with a
Watlow high limit controller for PS300, 310, 350, and
360 Ovens. See Figure 1.
The early (Type 54) United Electric control was ONLY
equipped with a high limit circuit. Ovens equipped
with this control did NOT have a cooldown circuit.
This control was used on the following models:
-
PS300/350 Gas (early)
-
PS300/310/350/360 Electric (early - all voltages)
For these ovens, the kit directly replaces the Type
54 high limit control with the Watlow high limit con-
trol.
The later (Type 55) United Electric control was
equipped with BOTH high limit and cooldown circuits,
and was used on the following models:
-
PS300/310/350/360 Electric (late), 208/240V and
480V UL versions ONLY
For these ovens, the kit replaces the Type 55 con-
trol with the Watlow high limit control, and uses the
ovens temperature controller to provide the
cooldown circuit.
Figure 1
Page 1 of 8
P/N 39732
Rev. B V1 5/99
United Electric Type 54
High Limit Control
United Electric Type 55
High Limit/Cooldown
Control
Watlow High
Limit Control
Lighted Reset
Switch
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Summary
Page 5 of 8 D. TESTING THE INSTALLATION 22. Remove the thermocouple wires from the TC + and TC - terminals on the high limit control.23. Attach a Middleby Marshall Thermocouple Source (P/N 27170-0263) to the TC + and TC - termi- nals on the high limit control, in place of the thermocouple wi...
Page 6 of 8 Figure 7 - United Electric Model 55 replacement: ovens with a cooldown feature KEY
A MIDDLEBY COMPANY Middleby Cooking Systems Group 1400 Toastmaster Drive Elgin, IL 60120 USA (847) 741-3300 FAX (847) 741-4406 Middleby Corporation Service Hotline 1-800-238-8444 www.middleby.com Page 8 of 8
